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Readme.md

ChaCha20

Build Status

This is a go implementation of the chacha20 cipher by djb. It uses the C implementation of the chacha20 cipher by Ted Krovetz. If cgo cannot be used it falls back to a go implementation of chacha20.

Speed

Ted Krovetz's version of chacha20 appears to be far faster than AES on my PC (encrypting 1Kb of data).

BenchmarkChaCha2020_1K   1000000              2438 ns/op         419.86 MB/s
BenchmarkChaCha2012_1K   1000000              1898 ns/op         539.48 MB/s
BenchmarkAES256CTR_1K     500000              6564 ns/op         155.99 MB/s
BenchmarkAES192CTR_1K     500000              6226 ns/op         164.46 MB/s
BenchmarkAES128CTR_1K     500000              5938 ns/op         172.44 MB/s

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A golang implementation of djb's chacha20 cipher

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